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  • 1
    Keywords: Plattentektonik ; Magmatismus ; Kontinentalverschiebung ; Continental margins ; Gondurana (Géologie) ; Gondwana (Continent) ; Gondwana (Géologie) - Congrès ; Gondwana (géologie) ; Géodynamique ; Lithosphère ; Magmatism ; Magmatisme ; Marges continentales ; Plate tectonics ; Roches - Fracturation naturelle ; Tectonique des plaques ; Terre - Manteau
    Description / Table of Contents: Magma Generation and Break-Up Processes --- R. S. White: Magmatism during and after continental break-up / Geological Society, London, Special Publications, 68:1-16, doi:10.1144/GSL.SP.1992.068.01.01 --- Millard F. Coffin and Olav Eldholm: Volcanism and continental break-up: a global compilation of large igneous provinces / Geological Society, London, Special Publications, 68:17-30, doi:10.1144/GSL.SP.1992.068.01.02 --- Martin A. Menzies: The lower lithosphere as a major source for continental flood basalts: a re-appraisal / Geological Society, London, Special Publications, 68:31-39, doi:10.1144/GSL.SP.1992.068.01.03 --- A. D. Saunders, M. Storey, R. W. Kent, and M. J. Norry: Consequences of plume-lithosphere interactions / Geological Society, London, Special Publications, 68:41-60, doi:10.1144/GSL.SP.1992.068.01.04 --- S. A. Gibson, R. N. Thompson, P. T. Leat, A. P. Dickin, M. A. Morrison, G. L. Hendry, and J. G. Mitchell: Asthenosphere-derived magmatism in the Rio Grande rift, western USA: implications for continental break-up / Geological Society, London, Special Publications, 68:61-89, doi:10.1144/GSL.SP.1992.068.01.05 --- D. K. Bailey: Episodic alkaline igneous activity across Africa: implications for the causes of continental break-up / Geological Society, London, Special Publications, 68:91-98, doi:10.1144/GSL.SP.1992.068.01.06 --- Don L. Anderson, Yu-Shen Zhang, and Toshiro Tanimoto: Plume heads, continental lithosphere, flood basalts and tomography / Geological Society, London, Special Publications, 68:99-124, doi:10.1144/GSL.SP.1992.068.01.07 --- Martin H. P. Bott: The stress regime associated with continental break-up / Geological Society, London, Special Publications, 68:125-136, doi:10.1144/GSL.SP.1992.068.01.08 --- Early Stages of Gondwana Break-Up --- K. G. Cox: Karoo igneous activity, and the early stages of the break-up of Gondwanaland / Geological Society, London, Special Publications, 68:137-148, doi:10.1144/GSL.SP.1992.068.01.09 --- B. C. Storey, T. Alabaster, M. J. Hole, R. J. Pankhurst, and H. E. Wever: Role of subduction-plate boundary forces during the initial stages of Gondwana break-up: evidence from the proto-Pacific margin of Antarctica / Geological Society, London, Special Publications, 68:149-163, doi:10.1144/GSL.SP.1992.068.01.10 --- David H. Elliot: Jurassic magmatism and tectonism associated with Gondwanaland break-up: an Antarctic perspective / Geological Society, London, Special Publications, 68:165-184, doi:10.1144/GSL.SP.1992.068.01.11 --- T. S. Brewer, J. M. Hergt, C. J. Hawkesworth, D. Rex, and B. C. Storey: Coats Land dolerites and the generation of Antarctic continental flood basalts / Geological Society, London, Special Publications, 68:185-208, doi:10.1144/GSL.SP.1992.068.01.12 --- C. W. Rapela and R. J. Pankhurst: The granites of northern Patagonia and the Gastre Fault System in relation to the break-up of Gondwana / Geological Society, London, Special Publications, 68:209-220, doi:10.1144/GSL.SP.1992.068.01.13 --- South Atlantic Opening --- C. J. Hawkesworth, K. Gallagher, S. Kelley, M. Mantovani, D. W. Peate, M. Regelous, and N. W. Rogers: Paraná magmatism and the opening of the South Atlantic / Geological Society, London, Special Publications, 68:221-240, doi:10.1144/GSL.SP.1992.068.01.14 --- Marjorie Wilson: Magmatism and continental rifting during the opening of the South Atlantic Ocean: a consequence of Lower Cretaceous super-plume activity? / Geological Society, London, Special Publications, 68:241-255, doi:10.1144/GSL.SP.1992.068.01.15 --- M. P. R. Light, M. P. Maslanyj, and N. L. Banks: New geophysical evidence for extensional tectonics on the divergent margin offshore Namibia / Geological Society, London, Special Publications, 68:257-270, doi:10.1144/GSL.SP.1992.068.01.16 --- Northwest Indian Ocean and Gulf of Aden --- C. W. Devey and W. E. Stephens: Deccan-related magmatism west of the Seychelles-India rift / Geological Society, London, Special Publications, 68:271-291, doi:10.1144/GSL.SP.1992.068.01.17 --- M. A. Menzies, J. Baker, D. Bosence, C. Dart, I. Davison, A. Hurford, M. Al’Kadasi, K. McClay, G. Nichols, A. Al’Subbary, and A. Yelland: The timing of magmatism, uplift and crustal extension: preliminary observations from Yemen / Geological Society, London, Special Publications, 68:293-304, doi:10.1144/GSL.SP.1992.068.01.18 --- North Atlantic Opening --- Jakob Skogseid, Tom Pedersen, Olav Eldholm, and Bjørn T. Larsen: Tectonism and magmatism during NE Atlantic continental break-up: the Vøring Margin / Geological Society, London, Special Publications, 68:305-320, doi:10.1144/GSL.SP.1992.068.01.19 --- Lotte M. Larsen, Asger K. Pedersen, Gunver K. Pedersen, and Stefan Piasecki: Timing and duration of Early Tertiary volcanism in the North Atlantic: new evidence from West Greenland / Geological Society, London, Special Publications, 68:321-333, doi:10.1144/GSL.SP.1992.068.01.20 --- R. C. O. Gill, A. K. Pedersen, and J. G. Larsen: Tertiary picrites in West Greenland: melting at the periphery of a plume? / Geological Society, London, Special Publications, 68:335-348, doi:10.1144/GSL.SP.1992.068.01.21 --- Paul Martin Holm, Niels Hald, and Troels F. D. Nielsen: Contrasts in composition and evolution of Tertiary CFBs between West and East Greenland and their relations to the establishment of the Icelandic mantle plume / Geological Society, London, Special Publications, 68:349-362, doi:10.1144/GSL.SP.1992.068.01.22 --- H. C. Larsen and C. Marcussen: Sill-intrusion, flood basalt emplacement and deep crustal structure of the Scoresby Sund region, East Greenland / Geological Society, London, Special Publications, 68:365-386, doi:10.1144/GSL.SP.1992.068.01.23 --- Aidan M. Joy: Right place, wrong time: anomalous post-rift subsidence in sedimentary basins around the North Atlantic Ocean / Geological Society, London, Special Publications, 68:387-393, doi:10.1144/GSL.SP.1992.068.01.24
    Pages: Online-Ressource (VI, 404 Seiten) , Diagramme, Karten
    ISBN: 0903317834
    Language: English
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  • 2
    Publication Date: 1992-12-01
    Print ISSN: 0278-7407
    Electronic ISSN: 1944-9194
    Topics: Geosciences
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  • 3
    Publication Date: 1993-09-01
    Description: Thurston Island, and the adjacent Eights Coast and Jones Mountains, record Pacific margin magmatism from Carboniferous to Late Cretaceous times. The igneous rocks form a uniformly calc-alkaline, high-alumina, dominantly metaluminous suite; some relatively fractionated granitoids are mildly peraluminous. The magmas were hydrous, a result of subduction. Gabbros have compositions outside the range of mafic volcanic and hypabyssal rocks, as a result of cumulate processes. Trace element compositions of the mafic magmas range from a low La/Yb, Th/Ta end-member close to E-MORB in composition, perhaps contaminated by crust, to a high La/Yb, Th/Ta end-member, close to shoshonite, with strong magmatic arc trace element character. This variation may be a result of mixing of tholeiitic and shoshonitic end-members. Most silicic rocks could have been generated batch-wise from mafic magmas by fractional crystallization of a phenocryst assemblage dominated by plagioclase, pyroxene ± amphibole, as seen in the cumulates. Cessation of magmatism at about 90 Ma approximately coincided with collison of a spreading centre between the Phoenix and Pacific oceanic plates with the continent margin subduction zone. The rifting of New Zealand from West Antarctica and associated extension probably was responsible for emplacement of a coast-parallel Cretaceous dyke swarm.
    Print ISSN: 0954-1020
    Electronic ISSN: 1365-2079
    Topics: Biology , Geography , Geosciences
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  • 4
    Publication Date: 1993-12-01
    Print ISSN: 0012-821X
    Electronic ISSN: 1385-013X
    Topics: Geosciences , Physics
    Published by Elsevier
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